Ventilator.



MOYER.

VENTILATGR.

APPLzCATloN HLED JAN. x8. 191.1.

Patented Nov. "if, ll.

M. B. MOYER.

VENTILATOR.

APPLICATION 4mm) um. 18. 19u.

1,246,774. Patented N0v.13,1917.

2 SHEETS-SHEET 2.

fluor/mman MALCOLM B. MOYER. OF MONTEVIDEO, MINNESOTA.

VENTILATOB.

Specification of Letters Patent.

Patented Nov. 13, 191'7.

Application led January 18, 1917. 4 Serial No. 143,141.

T0 all whom t may concern.'

Be it known that I, MALCOLM B. MoYnR, a citizen of the United States, residing at Montevideo, in the county of Chippewa and State of Minnesota, have invented certain new and useful Improvements in Ventilators; and I do declare `the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention has for its object to provide a simply constructed and inexpensive yet highly efficient and durable ventilator which will create an upward suction through the flue to which it is applied, regardless of the direction in which the air currents are traveling.

With the foregoing general object in view, the invention resides in certain novel features of construction and unique combinations of parts to be hereinafter fully described and claimed, the descriptive matter being supplemented by the accompanying drawings which constitute a part of this application and in which:

Figure 1 is a vertical section through the improved ventilator;

Fig. 2 is a horizontal section on the plane of the line 2 2 of Fig. 1; and

Figs. 3, 4 and 5 are diagrams showing the action of the ventilator when the air currents are traveling respectively in horizontal, downward, and upward directions.

In the drawings above briefly described, the numeral 1 has reference to a continuous vertically disposed wall preferably of cylindrical formation and formed with circumferentially spaced openings 1, said wall having adjacent its upper and lower ends two series of inwardly stamped ngers 2 and 3 leaving openings 4 and 5. The lower lingers 3 rest on an inverted frusto-cone-shaped bottom 6 which is supported in any preferred manner from a flue 7, said bottom preferably having a depending ange 8 surrounding the upper end of the flue and resting on a bead 9, said flue projecting a suitable distance above the bottom so as to direct any moisture which might otherwise pass down the iiue, through discharge openings 10 formed at the lower edge of the bottom.

A cone-shaped sheet metal top 11 i'its within the upper end of the wall 1 and rests on the upper fingers 2, the two series of fingers therefore serving to support the wall 1 from the bottom 6 and the top 11 from said upper and lower inwardly'extending arms 'Y 13 and 14 which project respectively through the upper and lower openings 4 and 5, said upper arms overlying the top 11 to secure it in place while the lower arms underlie the bottom 6 to prevent the detachment of the several parts by the action of wind.

The arms 13 and 14 are preferably formed by bending the upper and lower ends of sheet metal strips 15 linwardly at obtuse angles to the bodies of said strips as shown clearly in Fig. 1, said bodiesbeing secured by rivets or the like 16 to the outer wall 12 sothat the latter is rigidly supported and spaced from the wall 1.

The upper series of openings 4 not only serve to receive the arms 13 but they are sufficiently wide to permit water to run from the cone-shaped top 11 into the-space between the two walls, thus serving to prevent the accumulation of such water upon the device. Any water which may gain access to the interior of the wall 1 will be carried therefrom through the openings 10 'as above described.

By constructing the ventilator in the manner above described, itis only necessary to use a small number lof rivets or bolts as occasion may demand since the ears 2 and 3 and the arms 13 and 14 eectively secure all other parts together, thus permitting the device to be manufactured much more easily and cheaply than if bolts, screws or the like were used at numerous points for securing the several parts together. This unique construction, therefore, is considered an important part of the invention.

In operation, the improved ventilator is placed upon the upper end of any suitable iiue such as that indicated at 7 and will serve to create suction in the latter regardless of the direction in which the air currents are traveling. When the air is moving horizontally as indicated in Fig. 3, suction will be created in the space between the two walls 1 and 12 and within the inner wall through the openings 1. When the air currents are traveling downwardly or upwardly as shown respectively in Figs. 4 and 5, it will travel through the space between the two walls and in so doing will create suction within the inner wall through the openings l. Suction created in the device causes an upward travel of air through the flue 7 and thus all foul air from the building is effectively exhausted.

Although the construction shown constitutes the preferred form of the ventilator on account of the advantages above set forth, it is to be understood that within the scope of the invention as claimed, numerous changes may be made without sacriiicing the principal advantages.

I claim: y

. l. A ventilator comprising a chamber having a continuous vertical side wall, a coneshaped top below the upper edge ofsaid wall and an inverted fruSto-cone-shaped bottom above the lower edge of said wall and formed with an inlet, said side wall having outlet openings between said top and bottom, a second continuous wall surrounding the other in spaced relation thereto and of substantially 'the same height.

2. A ventilator' comprising a continuous inner wall having an upper series of openings and inwardly projecting ears at the lower edges of said openings, a top closing the upper end of the space circumscribed -by said wall and resting on said ears, a second continuous wall surrounding the other in spaced relation thereto, arms extending inwardly from said second wall through said series of openings and overlying the top to hold the same in place, and a bottom closing the lower end of the space circumscribed by said rst named wall, said bottom having an inlet and said inner wall having outlets between said top and bottom.

8. A ventilator comprising an inner continuous wall having a lower series of openings and inwardly projecting ears at the upper edges thereof, a bottom closing the lower end of the space circumscribed by said wall and receiving said ears thereon whereby said wall is supported, said bottom having an inlet and Said wall having outlets above said bottom, a second continuous wall surrounding the first in spaced relation thereto, arms extending inwardly from said second wall through said series of openings and underlying the bottom, and a top closing the upper end of the space circumscribed by said firstnamed wall.

el. A ventilator comprising a continuous inner wall open at'its upper and lower ends and having an upper and a lower series of openings and inwardly proj ectinp` ears at the inner edges of said openings, a bottom closing the lower end of the space circumscribed by said wall and receiving the lowermost ears on its upper side to support said wall, said bottom having an inlet and said wall having outlet openings, a top closing the upper end of the space circumscribed by Said wall and resting on the uppermost ears, a second continuous wall surrounding the other in spaced relation thereto, and supporting arms extending inwardly from said second wall into said upper and lower series of openings, and respectively overlying the top and underlying the bottom.

In testimony whereof l have hereunto set my hand in 'the presence of two subscribing witnesses.

MALCOLM B. MOYER.

Witnesses:

F. J. TscHANN, E. A. HUBERG.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. G. 

